Rio-Grande Planning Region Reservoirs: Monitored Water Supply Reservoirs are 15.4% full on 2025-09-08

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-09-08 15.4 285,756 240,447 1,562,367
Yesterday 2025-09-07 15.3 284,183 239,123 1,562,367
2 days ago 2025-09-06 15.2 282,756 237,922 1,562,367
1 week ago 2025-09-01 15.4 286,614 241,169 1,562,367
1 month ago 2025-08-08 15.9 311,494 247,679 1,562,367
3 months ago 2025-06-08 14.7 285,521 229,213 1,562,367
6 months ago 2025-03-08 15.9 326,049 248,975 1,562,367
1 year ago 2024-09-08 12.4 289,561 193,689 1,562,367
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area Map

Reservoir Storage

Reservoir Type Percent Full Water Level
(ft)
Height Above Conservation Pool
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Falcon 1 Water Supply 15.4 253.93 -47.27 285,756 240,447 1,562,367 19,781
footnotes
1

Lake Falcon straddles the border of Texas and Mexico. By treaty, Texas has rights 58.6% of the total conservation capacity. The fraction of the actual storage that belongs to Texas is formally determined biweekly by the International Boundary Water Commission (IBWC). The IBWC is the legal repository of data related to this lake for treaty purposes and official versions of the datasets should be obtained directly from them. Conservation capacity is based on 58.6% of total conservation capacity. Conservation storage is based on the bi-weekly changing Texas share.